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Meta·Software Engineer·Onsite - Product Sense / Strategy·Senior

Senior
Jun 2026

Summary

Meta PM interview, one question about Newsfeed product decisions. Pretty focused case, no behavioral fluff, just straight into a product tradeoff.

Questions Asked (1)

Q1

You're the PM for Facebook Newsfeed. How would you decide between auto-playing videos versus requiring a click to play?

Product StrategyA/B Testing & ExperimentationTechnical Trade-offs
Author's notes

I went straight to user impact and kind of forgot to anchor on what Meta actually cares about, which is engagement and time spent.

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AI HintsAI Generated

Suggested Approach

Frame the decision as a product trade-off between user experience, engagement metrics, and technical constraints. Propose a structured evaluation using data, user research, and A/B testing to measure impact on key metrics like watch time, user satisfaction, and ad revenue. Emphasize that the optimal solution may be nuanced (e.g., autoplay with sound off, or click-to-play for certain content types).

Pro tip: Acknowledge that autoplay can boost short-term engagement but may harm long-term user trust and data costs; suggest a hybrid approach or user control to balance trade-offs. Show awareness of Meta's emphasis on meaningful interactions and user well-being.

1. Define Success Metrics

Identify key metrics such as video watch time, user engagement (likes, shares, comments), ad revenue, user satisfaction (surveys), and data consumption. Prioritize metrics based on product goals (e.g., growth vs. well-being).

2. Understand User Segments and Contexts

Consider different user behaviors: some may prefer autoplay for convenience, others may find it intrusive or data-heavy. Analyze contexts like Wi-Fi vs. cellular, sound on/off, and content type (e.g., news vs. entertainment).

3. Evaluate Technical and Business Trade-offs

Assess technical implications: bandwidth, battery, latency. Business implications: ad viewability, revenue, and potential user churn. Consider competitive landscape and platform capabilities.

4. Design and Run Experiments

Propose A/B tests comparing autoplay vs. click-to-play, measuring both short-term and long-term effects. Include guardrail metrics to detect negative impacts (e.g., user complaints, reduced session time).

5. Iterate and Personalize

Based on results, consider a hybrid approach: autoplay for certain content or user settings, with clear controls. Continuously monitor and adapt as user preferences evolve.

Key Points to Mention

  • A/B testing methodology and statistical significance
  • Impact on user engagement metrics (watch time, shares)
  • Data consumption and battery life concerns
  • Ad revenue and viewability implications
  • User control and settings (e.g., autoplay off in settings)
  • Long-term user satisfaction and trust

AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.